ngs-special-functions

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1

Hi,
I wanted to install the ngs-special-functions and followed the instructions on the webpage. Looks all good til I run make, then I get the following error

Found Netgen: /home/mary/ngsuite/ngsolve-install/lib/cmake/netgen
– Setting build type to NGSolve build type: RelWithDebInfo
– Found PythonInterp: /usr/bin/python3 (found suitable version “3.6.5”, minimum required is “3”)
– Found PythonLibs: /usr/lib64/libpython3.6m.so (found suitable version “3.6.5”, minimum required is “3”)
CMake Error at CMakeLists.txt:17 (target_link_libraries):
The plain signature for target_link_libraries has already been used with
the target “special_functions”. All uses of target_link_libraries with a
target must be either all-keyword or all-plain.

The uses of the plain signature are here:

  • /home/mary/ngsuite/ngsolve-install/lib/cmake/ngsolve/NGSolveConfig.cmake:76 (target_link_libraries)
  • /home/mary/ngsuite/ngsolve-install/lib/cmake/ngsolve/NGSolveConfig.cmake:82 (target_link_libraries)

I do have NgSolve installed - do I need a newer version or what else am I missing ?

Thanks
Marie-Therese

2

Hi Marie-Therese,

Yes, you need to update NGSolve, the code resolving this issue was committed in October 2019.

Bets,
Matthias

3

Vielen Dank und guten Morgen.

Ich hab jetzt NgSolve upgedatet (Anweisungen auf der Webpage gefolgt). Hat geklappt … wenn ich allerdings dann die special functions kompilieren will krieg ich eine Fehlermeldung dass gcc-8 nicht hinreichend ist. Jetzt hab ich gcc-10 installiert und

gcc --version
gxx --version

verweisen jeweils auf gcc10. Wenn ich allerdings NgSolve neu installiere verwendet er weiterhin die 8ter Version. Was muss ich denn da noch aendern ?

vielen Dank
Mary

4

Sorry, wrong language … my brain. Please find the English version below (just in case ;-))

I updated NgSolve, compiled and installed it - all fine. However, wenn compiling the special functions package I got an error message that I need to upgrade my gcc compiler. I did install gcc10 and
gcc --version
g++ --version
link to the gcc10 compilers. However even if I reconfigure NgSolve (deleting the ngsolve-build and running cmake again), it’s using the gcc8 compilers.

Thanks a lot
Mary

5

Hi Mary,
Try to rerun cmake with additional options -DCMAKE_CXX_COMPILER=g+±10 -DCMAKE_C_COMPILER=gcc-10
Best Christopher

6

Thanks, I recompiled everything -it’s working now. I just have to figure out how to work with these special functions.

Thanks again
Marie-Therese